| 摘要 |
<p>Safety code for application to materials consisting of a picture-like display (1,2,5) with at least two color elements, which under normal light in a camera region the whole display can be recognized as a perceivable image by the human eye by means of an image processing device. On infrared illumination of the display in the camera region part (4) of the display is invisible to the eye but visible to the image processing device. Independent claims are included for:a device for sorting and/or collecting packaging materials, e.g. PET or glass drink containers involving recognition of a safety code; #method for for sorting and/or collecting packaging materials involving a scanner and a control device.</p> |
